Results 181 to 190 of about 7,052 (219)

Reduction of biselenite to elemental selenium by Aspergillus parasiticus

Transactions of the British Mycological Society, 1987
Actively growing mycelium of Aspergillus parasiticus is able to reduce sodium biselenite with the deposition of granules of elemental selenium within the mycelium.
MOSS, MO, BADII, F, GIBBS, G
openaire   +2 more sources

Nanosilica synthesis mediated by Aspergillus parasiticus strain

Fungal Biology, 2018
Rice husks (RHs) are plant waste materials abundant in phytoliths silica bodies. These were used as starting material for fungal-mediated biotransformation leading to the synthesis of a high-value added product. A strain of Aspergillus parasiticus was capable of transforming the amorphous silica conglomerates into structured nanoparticles (NPs) in the ...
Aleksandra, Zielonka, Ewa, Żymańczyk-Duda, Małgorzata, Brzezińska-Rodak, Maciej, Duda, Jakub, Grzesiak, Magdalena, Klimek-Ochab   +5 more
openaire   +2 more sources

Oxidases in Aspergillus parasiticus in relation to aflatoxin biosynthesis

Toxicon, 1980
Abstract The effects of asparagine and zinc were studied on the nucleotide oxidases and lipid peroxidase during secondary biosynthesis in A. parasiticus . The activity of NADPH and NADH oxidases was higher in zinc deficient cultures as compared to those in sucrose-low salt cultures and under asparagine deficiency, thereby lowering the NADPH/NADP and
V M, Rao, K K, Maggon, T A, Venkitasubramanian   +2 more
openaire   +2 more sources

Generation of aflR disruption mutants of Aspergillus parasiticus

Applied Microbiology and Biotechnology, 2000
The aflR gene of Aspergillus parasiticus and A. flavus encodes a binuclear zinc-finger, DNA-binding protein, AflR, responsible for activating the transcription of all known aflatoxin biosynthetic genes including itself. Studies to determine how environmental and nutritional factors affect aflR expression and hence aflatoxin production in A. parasiticus
J W, Cary, K C, Ehrlich, M, Wright, P K, Chang, D, Bhatnagar   +4 more
openaire   +2 more sources

BIOENERGETICS OF AFLATOXIN BIOSYNTHESIS IN Aspergillus parasiticus

Journal of Food Science, 1980
ABSTRACT Variations in levels of adenine nucleotides during growth of A. parusiticus were studied under asparagine and zinc deficiency and correlated with aflatoxin biosynthesis. ATP levels decreased gradually from exponential to stationary phase but the reverse was true for
VIDYA M. RAO, S. SARASWATHY, K. K. MAGGON, T. A. VENKITASUBRAMANIAN   +3 more
openaire   +1 more source

Association of aflatoxin biosynthesis and sclerotialdevelopment in Aspergillus parasiticus

Mycopathologia, 2002
Secondary metabolism in fungi is frequently associated with asexual and sexual development. Aspergillus parasiticus produces aflatoxins known to contaminate a variety of agricultural commodities. This strictly mitotic fungus. besides producing conidia asexually, produces sclerotia, structures resistant to harsh conditions and for propagation. Sclerotia
Perng-Kuang, Chang, Joan W, Bennett, Peter J, Cotty   +2 more
openaire   +2 more sources

Aspersitin-a new metabolite of aspergillus parasiticus

Tetrahedron Letters, 1983
Abstract The structure of aspersitin, a new metabolite of Aspergillus parasiticus was determined by X-ray analysis, and by spectroscopic measurements.
George Büchi, Manuel A. Francisco, William V. Murray, Traudel Kachholz, Arnold L. Demain, John F. Blount   +5 more
openaire   +1 more source

Conversion of averufin into aflatoxins by Aspergillus parasiticus

Biochemistry, 1973
M T, Lin, D P, Hsieh, R C, Yao, J A, Donkersloot   +3 more
openaire   +2 more sources

Structure of polygalactosamine produced by Aspergillus parasiticus.

Journal of biochemistry, 1981
The structure of polygalactosamine purified from the culture fluid of Aspergillus parasiticus AHU 7165 was studied. Partial acid hydrolysis of this polysaccharide, in which 55 to 65% of the monosaccharide residues were N-unsubstituted, gave a series of galactosamine oligosaccharides (dimer to hexamer) in a good yield.
H, Takada, Y, Araki, E, Ito
openaire   +1 more source

Biosynthesis of averufin from acetate by Aspergillus parasiticus

Journal of Agricultural and Food Chemistry, 1975
D L, Fitzell, D P, Hsieh, R C, Yao, G N, La Mar   +3 more
openaire   +2 more sources